#include <stdio.h>
int main()
{
    int n, i, un1, un2, un;
    for (n = 2; n < 3;)
    {
        printf("Please enter required number of generation:");
        scanf("%d", &n);
        if (n < 3)
            printf("\nEnter error!\n");
    }
    un = un2 = 1;
    printf("The repid increase of rabbits in first %d generations is as felow:\n", n);
    printf("l\tl\t");
    for (i = 3; i <= n; i++)
    {
        un1 = un2;
        un2 = un;
        un = un1 + un2;
        printf(i % 10 ? "%d\t" : "%d\n", un);
    }
    printf("\n");

    return 0;
}
//熊贤豪